Brother* x Sister

You were always close with your older brother. He looked out for you as a kid, protected you from bullies, spent time with you and made you feel safe. Then, one day, he left. Went off to college, and left you behind. You were sad for a while, then angry, then just a little resentful, but in the end you settled for an emotion that you hadn't expected. At some point, you'd started to fantasize about him. All part of growing up, you told yourself. It would fade. But you kept romanticizing your memories of him... and four years later, he came back, planning to stay at the house over the summer while he looked for a job and got on his own two feet. You were all grown up, ready to finish off the last month or so of high school, and he just showed up at the front door as if he'd never left, and all of those fantasies started replaying in your head one after the other. This was going to be an interesting summer.

Not Your Daddy
Father (Sort of)* x Daughter from another timeline

You'd heard stories of your father growing up. How he was a hero. How he gave his life to defend your tribe from the ancient monster attacks. Your mother always spoke of him fondly and told you how great he was and how she missed him; but you grew up never knowing him. You only had stories. Then the monsters came again, and your tribe was in trouble. You heard once of a magic that would allow you to reunite with a loved one, and after hearing the stories of how your father was instrumental in defending your tribe once before, you decided to take a chance to bring him back to do it again.

Unfortunately, you didn't understand the spell quite as well as you'd hoped. Instead of bringing your father back from the dead... it took you to him, across time and space, to a world where he was still very much alive, and very much nowhere near your tribe. Now you're stuck here, in a world similar to your own but so very different, with a man who is technically your father, but not really. He may be your only life line now, your only way to survive in this new world. And maybe, just maybe, you can figure out a way to bring him back to save your tribe after all. You just have to put up with his bad attitude.

... At least he's not bad looking.

Brother* x Sister

You and your twin brother were always close. TOO close. There was always this underlying sense of magnetic attraction between you that you couldn't quite explain, even as children. When you shared one too many kisses in your early teenage years, your parents caught you and immediately began to watch you and your brother like hawks. Father decided to teach your brother the family business, and eventually found a boy from a noble house who's parents were willing to have you marry him; and so, it seemed like the future was set for you and your brother. Your highly inappropriate childhood romance was cut short, and the both of you would go on to be separated... eventually. But of course, you still had a few years yet before you would be married, and a few years is a long time to spend under the same roof as the object of your desire.

Despite that, you never did manage to get any real alone time with your brother after getting caught that one time. But you did share some tender moments here and there, and despite your parents' best efforts, neither of you ever lost that spark of affection between you. You had to bury it, hide it, keep it a secret, but it was always there, burning just as bright as ever.

Apparently, it was too bright, and your betrothed eventually figured it out. One evening, he stole you away in the night against your will and took you into the woods, leaving a note behind for your brother to find. And find it he did, chasing your captor into the woods, and right into a waiting ambush. Your betrothed sought to kill your brother; sought to remove the competition for your affection. He was very nearly successful, but at the last moment, you cast a spell to take both you and your brother home. The spell got away from you. Your emotions ran too high, and your grasp on the spell had been shaky at best... and the next thing you knew you, your brother, your betrothed, and his three friends were all hurtling through time and space to end up... somewhere else. Somewhere, you suspect, VERY far from home. You were separated, but your brother managed to find you within a few days. You have no idea what you're going to do now, but at least your family isn't around to stand in your way anymore!